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The Superstat has the added features of a heavier frame, spring and heat motor for more control and longer life. Its unique, patented valve promotes extremely fast flow as the thermostat opens to reduce cycling. This thermostat offers a longer life so you do not have to change the thermostat as often, promotes improved engine efficiency from better temperature control and provides high flow.

Because of indicated higher water temperature readings on my guage, I replace the standard thermostat with a Superstat Thermostat by Stant, hoping to get better flow volume at a faster rate. I observed...Read complete review

Because of indicated higher water temperature readings on my guage, I replace the standard thermostat with a Superstat Thermostat by Stant, hoping to get better flow volume at a faster rate. I observed almost immediate results as indicated by a lower guage reading. Installation was simple in my case (1986 el Camino). REMEMBER TO BUY THE TERMOSTAT HOUSING GASKET as it does not come with the thermostat.

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Most Liked Negative Review

A little cool

I replaced my thermostat because the heater wasn't putting out enough heat. That was right after I flushed the system and replaced the anti-freeze. I monitored the engine temperature with my ODBCII tool and...Read complete review

I replaced my thermostat because the heater wasn't putting out enough heat. That was right after I flushed the system and replaced the anti-freeze. I monitored the engine temperature with my ODBCII tool and while driving over 10 miles, it never indicated an engine temp much over 190 degrees. I was hoping it would show right at 195 like I ordered. End result, the heater still isn't putting out so I parked it waiting on warmer weather to reverse flush the heater core. I've always had good luck with Stant thermostats in the past and didn't expect any problems with this one but...

Bought thermostat for my 1976 jeep cj5, 258 engine, original owner. 258 eng. Are slow to warm up, live in Golden,co. Bought 195 degree thermostat and it warms up faster, runs better. For a few bucks more why would I buy anything but the superstat!

I choose the Stant thermostat over a 'store' branded one at a competitive store. While I was told by the other store "They are all made by the same company!", I would rather have the Stant due to reputation. The thermostat is the OEM temp range and works perfectly, allowing the engine to heat up quickly and then maintain the correct temp. Excellent quality and a good value.

Replaced it when changing my intake gaskets on my 95 f150. Filled it with fluid and the engine warmed up and it kicked on right at 195 and stayed there. Didn't think the old one was bad until i bought this one. Now my temp gauge stay's in one place no matter what kind of driving I'm doing

I replaced my thermostat because the heater wasn't putting out enough heat. That was right after I flushed the system and replaced the anti-freeze. I monitored the engine temperature with my ODBCII tool and while driving over 10 miles, it never indicated an engine temp much over 190 degrees. I was hoping it would show right at 195 like I ordered. End result, the heater still isn't putting out so I parked it waiting on warmer weather to reverse flush the heater core. I've always had good luck with Stant thermostats in the past and didn't expect any problems with this one but...

Got this on the jeep fairly quick, have 150k on the jeep and figured its time for a change since its oem T-stat, Works fine and Good quality, Worth the $$nothing else comes in the box, tho the spring looks heavy duty, well put together. :D

This Stant Superstat™ Super Premium Thermostat, 195 Degrees Fahrenheit (Part No. 45359) does not include gasket, o-ring, rtv sealer. You need to buy it separately. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

The Stant Superstat™ Super Premium Thermostat, 195 Degrees Fahrenheit (Part No. 45359) has a circumference of 6.85". For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

In order to best answer your question, we need more information and our technicians would be more than happy to assist you if you could please call us at 1-877-ADVANCE (238-2623).

Answered on 7/7/2011 by DIY Daniel from AAP

Q:

im replacing a thermostat in my '95 ford taurus GL 6 cly. 3.0 engine. the old one i took out the ball valve was on top, than i bought this new Superstat thermo. and it has no ball valve to decide witch ends up or down when installing by the way u take it off. i know the spring side goes in, but can u install the wrong way? no ball valve to see. need help.... dont know if new ones matter how they go in, as long as spring side in first? car blowing cool air out instead of hot. back flushed it, checked the fuses/coolent. no leaks,no smell of antifreeze no wet spots under passanger side, not over heating,,HELP please.

Yes, you can install the wrong way. You need to install it just as it came out.

Answered on 12/13/2010 by Mike the Auto Parts Master from AAP

Q:

my '99 ford ranger w/3.0 flex engine has the original thermostat. the problem is that in cold weather it takes a while to come to normal operating temp. and when it does,the temp. gauge shows a large variances from the normal operating temp. until it is held at highway speed for 20 to 30 min. then the gauge holds steady at normal operating temp.. will the superstat remedy this problem. thank you

Possibly. Unfortunately we are unable to diagnose what is wrong with your vehicle without being able to be there with your vehicle. We highly recommend taking your vehicle to a reputable shop to have them take a look at it to determine the cause.

Answered on 12/3/2010 by Mike the Auto Parts Master from AAP

A:

yes

Answered on 1/14/2011 by john from cleveland,ohio

Q:

why use a 170 thermo VS a 195 thermo? im replumbing all my cooling system and need to know which thermo to buy...

Choosing which temperature of thermostat to go with depends on the climate of where you live. For just average weather, I would stick with whichever thermostat your vehicle originally came with. If the climate is alot colder than most it would be best to use a thermostat with a higher temperature thermostat and vice versa.

Yes this would be a good one, but I'd go with a lower alternative tempature honestly. As far as warranty... like they actually warranty thermostats anyways. It would help if the people that work for AAP actually answer the question asked and not just chime in about a warranty... that WASN'T Asked about

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